CRDA Plot Building Area Calculator
Plot area, FSI, coverage and setbacks together decide how much you can build. This tool works through them using the revised Phase 1 ebook table. For later pooling it has a separate mode that treats the table as an assumption.
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Explore your numbers
Plot size → historical building-area estimate
This is a rectangular-plot screening tool using the ebook’s revised table (PDF page 8). It is not a current permission calculator. Road width, access, parking, fire rules, height, services and later amendments can reduce the result.
Plot: 300 sq yd (2,700 sq ft). Ebook minimum: 120 sq yd.
- FSI-only ceiling · 2 × plot area
- 5,400 sq ft
- Coverage ceiling · 70% of plot
- 1,890 sq ft
- Footprint after coverage and setbacks
- 1,890 sq ft
- Screened total floor area
- 5,400 sq ft
Table storey limit: G+3 (4 above-ground floors). Basement row: 0. Basements are not added to this estimate.
Use the smaller of the coverage ceiling and the setback rectangle for the footprint. Then use the smaller of FSI area and footprint × 4 floors.
This is counted floor area for an educational example. It is not carpet area, saleable area, a flat count or approval to build.
Calculations run on this device. No personal details are needed. Values are rounded for display only.
Which rules does this page explain?
This page explains the Phase 1 Telugu ebook. The building values come from its inserted revision, on PDF page 8. They are historical reference values.
The ebook is not a complete set of current building rules. Confirm the approved plot zone and later amendments before you prepare a building application.
Four calculations, in order
The fourth result is a simple geometric screen. A designer must still account for staircases, lifts, parking, access, services and the rules for counted floor area.
- Multiply width by depth to get the rectangular plot area in square feet.
- Multiply plot area by FSI to get the FSI-only ceiling.
- Find the smaller of the coverage limit and the rectangle left after setbacks.
- Multiply that footprint by the table’s floor count. Compare it with the FSI ceiling and keep the smaller value.
Example: a 300 sq yd residential plot
This example can explain the arithmetic. It does not show a permitted four-floor plan or guarantee 5,400 sq ft of saleable space.
| Step | Calculation | Result |
|---|---|---|
| Plot dimensions | 45 ft × 60 ft | 2,700 sq ft = 300 sq yd |
| R3 detached FSI | 2,700 × 2.00 | 5,400 sq ft |
| Coverage ceiling | 2,700 × 70% | 1,890 sq ft |
| Setback rectangle | (45 − 3.3 − 0) × (60 − 6.6 − 3.3) | 2,089.17 sq ft |
| Footprint screen | Smaller of 1,890 and 2,089.17 | 1,890 sq ft |
| Total screen | Smaller of 5,400 and 1,890 × 4 | 5,400 sq ft |
Why equal-area plots can give different results
A narrow plot can lose more useful space to side setbacks. A shallow plot can lose more useful space to front and rear setbacks.
A corner plot can have extra frontage conditions. An irregular plot cannot be represented accurately by one width and one depth.
Use this tool only for a simple rectangle with one front road. Ask a designer to model all other shapes and conditions.
Minimum plot size is only the first check
The tool rejects a selected type when the calculated plot area is below its minimum. It also reports zero when setbacks leave no building rectangle.
Passing those checks is not approval. Road width, height, fire access, parking and other current rules are not fully specified in this ebook.
For R3 group development, the setback fields show TP. The tool reports the FSI and coverage ceilings but does not invent a setback or footprint.
Bring these details to your designer
- The registered plot area, approved dimensions and survey sketch.
- The approved layout, zone, plot use and road width.
- Any mortgage, easement, road-widening line or other restriction.
- The proposed use, number of units, parking needs and building height.
- The applicable zoning rules, AP Building Rules and all later amendments.
- Water storage, rainwater harvesting, energy and greenery requirements.
Want a straight answer about a plot or a village?
We live and work in the capital villages. Send the survey number or LP number and we will tell you what we know, including the things that should make you pause.